package tools

import (
	"regexp"
	"strings"
)

func TrimHtml(src string) string {
	//将HTML标签全转换成小写
	re, _ := regexp.Compile(`\<[\S\s]+?\>`)
	src = re.ReplaceAllStringFunc(src, strings.ToLower)
	//去除STYLE
	re, _ = regexp.Compile(`\<style[\S\s]+?\</style\>`)
	src = re.ReplaceAllString(src, "")
	//去除SCRIPT
	re, _ = regexp.Compile(`\<script[\S\s]+?\</script\>`)
	src = re.ReplaceAllString(src, "")
	//去除所有尖括号内的HTML代码，并换成换行符
	re, _ = regexp.Compile(`\<[\S\s]+?\>`)
	src = re.ReplaceAllString(src, ``)
	//去除连续的换行符
	re, _ = regexp.Compile(`\s{2,}`)
	src = re.ReplaceAllString(src, ``)
	return strings.TrimSpace(src)
}
